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Materials 2018, 11(4), 614;

Study on the Selective Laser Melting of CuSn10 Powder

Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Beijing e-Plus 3D Tech. Co. Ltd., Beijing 100084, China
Author to whom correspondence should be addressed.
Received: 14 March 2018 / Revised: 9 April 2018 / Accepted: 13 April 2018 / Published: 17 April 2018
(This article belongs to the Special Issue Selective Laser Sintering (SLS) of Materials)
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The selective laser melting of tin bronze (CuSn10) powder was performed with a laser energy density intensity level at 210, 220, and 230 J/mm2. The composition was homogeneous with almost all tin dissolved into the matrix. The grain size of the obtained alpha copper phase was around 5 μm. The best properties were achieved at 220 J/mm2 laser energy density with a density of 8.82 g/cm3, hardness of 78.2 HRB (Rockwell Hardness measured on the B scale), yield strength of 399 MPa, tensile strength of 490 MPa, and an elongation that reached 19%. “Balling effect” appeared and resulted into a decrease of properties when the laser energy density increased to 230 J/mm2. View Full-Text
Keywords: selective laser melting; CuSn10 powder; laser energy density; microstructure; mechanical properties selective laser melting; CuSn10 powder; laser energy density; microstructure; mechanical properties

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Deng, C.; Kang, J.; Feng, T.; Feng, Y.; Wang, X.; Wu, P. Study on the Selective Laser Melting of CuSn10 Powder. Materials 2018, 11, 614.

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